John Baldwin 228ace6ebf aThis patch updates the BTX to emulate the BIOS function "Copy Extended ... Memory" called as function 0x87 of interrupt 0x15. Since the Mylex RAID adapter's BIOS used this function to access memory (actually PCI bus space) beyond 16 MB, this patch also allows BTX to address all 4 Gig of possible address space on i386+. Since the loader does not have room for 4 MB of page tables, this was done by turning off paging. Paging was turned off via a compile time setting which defaults to off. To enable paging, simply define the make variable PAGING. rnordier might want to clean this up later. Submitted by: W. Gerald Hicks <wghicks@bellsouth.net>, Bosko Milekic <bmilekic@ares.dsuper.net> Reviewed by: msmith Required by: Mylex RAID adapter's BIOS		1999-10-12 21:33:49 +00:00
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btx	aThis patch updates the BTX to emulate the BIOS function "Copy Extended	1999-10-12 21:33:49 +00:00
btxldr	Blank out the twiddly thing when outputting the ``BTX loader'' message.	1999-10-12 06:57:26 +00:00
lib	$Id$ -> $FreeBSD$	1999-08-28 01:08:13 +00:00
Makefile	$Id$ -> $FreeBSD$	1999-08-28 01:08:13 +00:00